Cap is a free, open-source, ad-free screen recorder with basic editing. It makes zoom animations easily — great for tutorial videos.
Cap records the whole screen, a window, or a custom region, and can capture the webcam, plus microphone and system audio at once.
It's simple: after recording, you jump to the editor; click under the timeline to drop a zoom box, then adjust the area, timing and zoom level. Easy to pick up. There's a Chinese build, but the original feels better.